Transcript MEF Ethernet Services Overview for Carrier Ethernet World

Carrier Ethernet Services
Overview
Moderator:
Ralph Santitoro - Turin Networks
Panelists:
Tony Tam - Anda Networks
Dr. Sarath Kumar - Tejas Networks
Umesh Kukreja - Atrica
26 September2007
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Ralph Santitoro
Chair, MEF Web Marketing Committee
Director of Carrier Ethernet Solutions
Turin Networks
[email protected]
Dr. Sarath Kumar
Tony Tam
Umesh Kukreja
Sr. Product Line Manager
Anda Networks
[email protected]
Director of Product Marketing
Atrica
[email protected]
Group Director, Ethernet Products Group
Tejas Networks
[email protected]
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Agenda
• Carrier Ethernet Terminology
–
–
–
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User to Network Interface (UNI)
Network to Network Interface (NNI)
Ethernet Virtual Connections (EVCs)
Ethernet Service Types
• Ethernet Service Definitions
– E-Line Services
– E-LAN Services
– E-Tree Services
• Ethernet Service Attributes
– EVC and UNI Service Attributes
– Bandwidth Profiles
– Traffic Management
• Ethernet Service Application Examples
–
–
–
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Ethernet Private Line
Ethernet Virtual Private Line
E-LAN Services
E-Tree Services
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Service Definitions
Ralph Santitoro
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Carrier Ethernet Terminology
• User to Network Interface (UNI)
– Physical interface/demarcation between service
provider/Cable Operator/Carrier/ and subscriber
• Ethernet Virtual Connection (EVC)
– Logical representation of an Ethernet service as
defined by the associate between 2 or more UNIs
• Network to Network Interface (NNI)
– Demarcation between carrier Ethernet networks
operated by one or more carriers
– An active project of the MEF
UNI, EVC and NNI are the Fundamental Constructs of an Ethernet Service
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MEF Carrier Ethernet Terminology
- User to Network Interface (UNI)
• Physical Interface 10/100/1000Mbps or 10Gbps
– The UNI is always provided by the Service Provider
• MEF has defined two types of UNIs
– MEF UNI Type I
• A UNI compliant with MEF 13
• Manually Configurable
– MEF UNI Type II
• Automatically Configurable via E-LMI
• Manageable via OAM
Carrier Ethernet
Network
CE
UNI
UNI
CE: Customer Equipment, UNI: User Network Interface.
MEF certified Carrier Ethernet products
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MEF Carrier Ethernet Terminology
- Ethernet Virtual Connection (EVC)
• An Ethernet Service Instantiation
– Most commonly identified via 802.1ad SVLAN-ID
• Connects two or more subscriber sites (UNIs)
– Can multiplex multiple EVCs on the same UNI
• Three types of EVCs defined in MEF 10.1 TS
– Point-to-Point
– Multipoint-to-Multipoint
– Rooted Multipoint (Point-to-Multipoint)
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MEF Ethernet Service Definition Framework
• Ethernet Service Type
– Categorizes the service based on its EVC type
• Point-to-Point, Multipoint-to-Multipoint or Point-to-Multipoint
• Ethernet Service Attributes and Parameters
– Specifies the UNI and EVC requirements for each Ethernet
Service Type
The MEF defines Ethernet Services using this Framework
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Carrier Ethernet: Two Service Types Using EVCs
E-Line Service Type
• E-Line Service Type used to create
– Ethernet Private Lines
– Virtual Private Lines
– Ethernet Internet Access
Point-to-Point EVC
UNI
UNI
CE
CE
Carrier Ethernet
Network
• E-LAN Service Type used to create
E-LAN Service Type
– Multipoint Layer 2 VPNs
– Transparent LAN Service
– Foundation for Multicast
networks
Carrier Ethernet
Network
• TLS, IPTV
CE
UNI
UNI
Multipoint-to-Multipoint EVC
CE
MEF certified Carrier Ethernet products UNI: User Network Interface, CE: Customer Equipment
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Service Definitions
Tony Tam
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Services Using E-Line Service Type
• Ethernet Private Line (EPL)
– Replaces a TDM Private line
– Dedicated UNIs for Point-to-Point connections
– Single Ethernet Virtual Connection (EVC) per UNI
– The most popular Ethernet service due to its simplicity
UNI
UNI
CE
UNI
Storage
Service
Provider
CE
Carrier Ethernet
Network
ISP
POP
Internet
UNI
Point-to-Point EVCs
CE
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Services Using E-Line Service Type
• Ethernet Virtual Private Line (EVPL)
– Replaces Frame Relay or ATM services
– Supports Service Multiplexed UNI
• i.e., multiple EVCs per UNI
– Enables multiple services to be offered over a single
physical connection (UNI) to customer premise equipment
Service
Multiplexed
Ethernet
UNI
UNI
UNI
CE
Carrier Ethernet Network
CE
UNI
CE
Point-to-Point EVCs
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Services Using E-LAN Service Type
• Ethernet Private LAN and Ethernet Virtual Private
LAN Services
– Supports dedicated or service-multiplexed UNIs
– Supports transparent LAN services and multipoint Layer 2 VPNs
UNI
CE
UNI
CE
Carrier
Ethernet
Network
UNI
Multipoint-to-Multipoint EVC
CE
Ethernet Private LAN example
13
Services Using E-Tree Service Type
• Ethernet Private Tree (EP-Tree) and Ethernet Virtual
Private Tree (EVP-Tree) Services
– Enables Point-to-Multipoint Services with less provisioning than
typical hub and spoke configuration using E-Lines
• Provides traffic separation between users with traffic from one
“leaf” being allowed to arrive at one of more “Roots” but never
being transmitted to other “leaves”
Carrier Ethernet Network
UNI
CE
Leaf
Root
Leaf
CE
UNI
UNI
Leaf
CE
Rooted-Multipoint EVC
UNI
CE
Ethernet Private Tree example
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Service Attributes
Dr. Sarath Kumar
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Service Attributes
• EVC Service Attributes
– Details regarding the EVC including:
• Bandwidth profiles, QoS Assignment and Tagging options
• Frame Delay (Latency), Frame Delay Variation (Jitter),
Frame Loss Ratio
• UNI Service Attributes
– Details regarding the UNI including:
• Physical interface capabilities
• Service multiplexing capability
• C-VLAN bundling capability
• EVC and UNI Bandwidth Profiles Service Attributes
– Committed Information Rate (CIR)
– Excess Information Rate (EIR)
– MTU (frame) size
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Bandwidth Profiles per EVC
• BW profiles per EVC
– CIR (Committed Information Rate)
• Frame delivery obligation per SLA
– EIR (Excess Information Rate)
• Excess frame delivery allowed
EVC2
EVC1
– typically not subject to SLA
– CBS/EBS (Committed/Excess Burst Size)
• Size of burst window for CIR/EIR
• Color Marking
• Green – Forwarded frames
EIR
EVC3
– CIR conforming traffic
• Yellow – Discard Eligible frames
Total UNI BW
– Non-conformant with CIR , conformant with EIR
• Red – Discarded frames
– Non-conformant with CIR and EIR
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MEF 10.1 Traffic Management Model
Port-based
Port/VLAN-based
UNI
EVC2
EVC2
Ingress Bandwidth
Profile Per EVC1
Ingress Bandwidth
Profile Per EVC2
EVC3
Ingress Bandwidth
Profile Per EVC3
EVC1
EVC1
Ingress Bandwidth
Profile Per Ingress UNI
UNI
EVC3
Port/VLAN/CoS-based
UNI
EVC1
CE-VLAN CoS 6
Ingress Bandwidth Profile Per CoS ID 6
CE-VLAN CoS 4
Ingress Bandwidth Profile Per CoS ID 4
CE-VLAN CoS 2
Ingress Bandwidth Profile Per CoS ID 2
EVC2
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Ethernet Service Application
Examples
Umesh Kukreja
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EPL Example
• Simple configuration
Internet
Branch
• “The port to the Internet is untrusted”
• “The port to the branches is trusted”
EPL
• No coordination with MEN SP for HQ
to branch subnets
EPL
EPL
• Fractional bandwidth (Bandwidth
Profile) options to offer sub-rate
services
Firewall
Branch
HQ
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EVPL Example
Internet Service
Provider (ISP)
Service Multiplexed UNI
VLAN 178  Blue
VLAN 179  Yellow
VLAN 180  Green
VLAN 2000  Green
ISP
Customer 3
VLAN 2000  Blue
ISP
Customer 1
VLAN 2000  Yellow
ISP
Customer 2
• Efficient use of ISP router ports
• Easy configuration at ISP customer sites
• This port and VLAN 2000 (or even untagged) to ISP
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EVP-LAN Example
Service Multiplexing
C
Deadbeat Detect
Credit Check, Inc.
(DDCC)
D
A
Instant Cash
Loans, Inc. (ICL)
EVC1
EVC2
B
Walk In Drive Out
Used Cars, Inc. (WIDO)
• Redundant points of access for critical availability
higher layer service
• Multi-point to Multi-point service e.g. LAN Extension
Service, IP Multi-cast
• ICL and WIDO Used Cars cannot see each other’s traffic
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EP-Tree Example
A
Internet Service
Provider (ISP)
D
Small Guy Travel
B
EVC1
C
Root
Leaves
Tiny Guy Coffee
Diminutive Guy
Gaming Center
• Efficient use of ISP’s router port
• Simple configuration for the little guys
• Small, Tiny, and Diminutive Guys can’t see each
other’s traffic
• Second Root would provide redundant internet access
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EVP-Tree Example
Elevator Video Franchises
Service Multiplexing
Leaves
A
Internet
Service
Provider (ISP)
D
B
EVC1
Root
Small Guy Travel
C
Leaves
Tiny Guy Coffee
Diminutive Guy
Gaming Center
• Efficient distribution of elevator video
• Small, Tiny, and Diminutive Guys can’t see each other’s
traffic, EV Franchises can’t see each other’s traffic
• Second Root could be added to provide redundant
Internet access connections
• Some limits on what routing protocols can be used
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Q&A
Ralph Santitoro
Chair, MEF Web Marketing Committee
Director of Carrier Ethernet Solutions
Turin Networks
[email protected]
Dr. Sarath Kumar
Tony Tam
Umesh Kukreja
Sr. Product Line Manager
Anda Networks
[email protected]
Director of Product Marketing
Atrica
[email protected]
Group Director, Ethernet Products Group
Tejas Networks
[email protected]
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More at
www.MetroEthernetForum.org/presentations.htm
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